6533b820fe1ef96bd127995f

RESEARCH PRODUCT

A multi-reading method for dosimetric TL measurements with CaSO4:Dy phosphors

O. FiorellaE. OliveriM. Mangia

subject

Physicsmedicine.medical_specialtyDosimeterReading (computer)medicineRange (statistics)LinearityMedical physicsPhosphorGeneral MedicineComputational physics

description

Abstract A technique of dosimetric TL measurement for CaSO 4 :Dy phosphors is proposed. It is based on the results obtained in previous works, in which an approximately multi-Gaussian energetic distribution of the traps associated with the dosimetric peak and a different supralinear behaviour of the Gaussians were found. A single dosimeter is read a number of times by successive heating cycles which, starting always from room temperature, reach higher and higher final temperatures; in this manner it is possible to obtain consistent information on the dose several times. The drawback of the usual TL measurements, that is the total emptying of the dosimeter during one measurement, is then avoided. Besides, for the reading cycles at low final temperatures, the linearity range is about five times that obtained by the usual readings.

https://doi.org/10.1016/0029-554x(79)90150-2